Duralast Hvlp User manual

UNPACKING

After unpacking unit, inspect carefully for any

damage that may have occurred during transit.

Check for loose, missing, or damaged parts. If any

damage is observed, a shipping damage claim must

be ﬁled with carrier. Do not use the DURALAST®HVLP

Spray Gun if broken, bent, cracked or damaged parts

(including labels) are noted. Any HVLP Spray Gun that

appears damaged in any way, operates abnormally

or is missing parts should be removed from service

immediately. If you suspect that the HVLP Spray Gun

was subjected to shock load (a load that was dropped

suddenly, unexpectedly, etc.) immediately discontinue

use until it has been checked by a factory authorized

service center.

Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself and others by observing all

safety information, warnings, and cautions. Failure to comply with instructions could result in personal injury and/or damage to product or property. Please

retain instructions for future reference.

The following safety information is provided as a guideline to help you operate your HVLP Spray Gun under the safest possible conditions. Any tool or piece

of equipment can be potentially dangerous to use when safety or safe handling instructions are not known or not followed. The following safety instructions

are to provide the user with the information necessary for safe use and operation. Please read and retain these instructions for the continued safe use of

your tool. Failure to follow instructions listed below may result in serious injury. In addition, make certain that anyone that uses the equipment understands

and follows these safety instructions as well.

Operating Instructions and Parts Manual 80-376

05/15

2015 DURALAST

HVLP

SPRAY GUN

Explanation of Safety Signal Words

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION: Used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property

damage.

NOTES: Provide clarity and helpful information.

WARNING

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

Thank you very much for choosing a DURALAST Product!

For future reference, please complete the owner’s record below:

Model: _______________ Purchase Date: _______________

Save the receipt, warranty and these instructions. It is important that

you read the entire manual to become familiar with this product before

you begin using it. This tool is designed for certain applications only.

DURALAST cannot be responsible for issues arising from modiﬁcation. We

strongly recommend this tool is not modiﬁed and/or used for any applica-

tion other than that for which it was designed. If you have any questions

relative to a particular application, DO NOT use the tool until you have ﬁrst

contacted customer service to determine if it can or should be performed

on the product.

IMPORTANT INSTRUCTIONS

AND SAFETY RULES

1. Know your tool. Read this manual carefully. Learn the tool’s

applications and limitations, as well as, potential hazards speciﬁc

to it.

2. Keep work area clean and well lit. Cluttered or dark work areas invite

accidents.

3. Keep children away. All children should be kept away from the work

area. Never let a child handle a tool without strict adult supervision.

4. Do not operate this tool if under the inﬂuence of alcohol or drugs.

Read warning labels on prescriptions to determine if your judgment

or reﬂexes are impaired while taking drugs. If there is any doubt, do

not attempt to operate.

5. Use safety equipment. Eye protection should be worn at all times

when operating this tool. Use ANSI approved safety glasses. Everyday

eyeglasses are NOT safety glasses. Dust mask, non-skid safety

shoes, hard hat or hearing protection should be used in appropriate

conditions.

6. Wear proper apparel. Loose clothing, gloves, neck-ties, rings,

bracelets or other jewelry may present a potential hazard when

operating this tool. Keep all apparel clear of the tool.

7. Don’t overreach. Keep proper footing and balance at all times when

operating this tool.

8. Check for damage. Check your tool regularly. If part of the tool is

damaged it should be carefully inspected to make sure that it can

perform its intended function correctly. If in doubt, the part should

be repaired. Refer all servicing to a qualiﬁed technician. Consult your

dealer for advice.

9. Keep away from ﬂammables. Do not attempt to operate this tool near

ﬂammable materials or combustibles. Failure to comply may cause

serious injury or death.

10. Store idle tools out of the reach of children and untrained persons.

Tools may be dangerous in the hands of untrained users.

11. Maintain tools with care.

12. Keep tools dry and clean.

13. Do not use a damaged tool. Tag damaged tools “Do not use” until

repaired.

14. Use only accessories that are recommended by the manufacturer

for your model. Accessories that may be suitable for one tool may

become hazardous when used on another tool.

15. Tool service must be performed only by qualiﬁed repair personnel.

Service or maintenance performed by unqualiﬁed personnel could

result in a risk of injury.

16. When servicing a tool, use only identical replacement parts. Use of

unauthorized parts or failure to follow maintenance instructions may

create a risk of injury.

17. Maintain a safe working environment. Keep the work area well lit.

Make sure there is adequate surrounding workspace. Keep the work

area free of obstructions, grease, oil, trash, and other debris. Do not

use this product in a damp or wet location.

18. Maintain labels and nameplates on this product. These carry

important information. If unreadable or missing, contact customer

service for a replacement.

19. Before use, read and understand all warnings, safety precautions,

and instructions as outlined in the vehicle manufacturer’s service

manual. It is beyond the scope of this manual to properly describe the

correct procedure and test data for each vehicle.

20. Always perform vehicle service in a properly ventilated area. Never

run an engine without proper ventilation for its exhaust. Stop work

and take necessary steps to improve ventilation in the work area if

you develop momentary eye, nose, or throat irritation as this indicates

inadequate ventilation.

WARNING

• Disconnect from air supply before changing accessories or servicing.

• Check correct air pressure is maintained and not exceeded.

• Due to possible presences of asbestos dust from brake linings, when

working around vehicle brake systems, we recommend you wear

suitable respiratory protection.

NOTE: The manufacturer declines any and all responsibility for damage

to vehicles or components if said damage is the result of unskillful

handling by the operator or of failure to observe the basic safety rules set

forth in the instruction manual.

WARNING

Read Rules for Safe Operation and Instructions Carefully.

IMPORTANT SAFETY INSTRUCTIONS

The warnings, precautions, and instructions discussed in this manual

cannot cover all possible conditions and situations that may occur. The

operator must understand that common sense and caution are factors

which cannot be built into this product, but must be supplied by the

operator.

WARNING

1. Use only attachments recommended or sold by manufacturer. Use of

non-recommended attachments may result in ﬁre, electric shock or

injury.

2. Do not disassemble the HVLP Spray Gun. Take it to a qualiﬁed

professional when service or repair is required.

3. Keep air hose away from heat, oil and sharp edges. Check air hose

for wear before each use and ensure that all connections are secure.

4. Only use accessories which are speciﬁcally designed for use with a

HVLP Spray Gun.

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

5. Wear approved safety eye/face shield, ear defenders and hand

protection.

6. When not in use disconnect from air supply and store in a safe dry,

childproof location.

7. DO NOT use this HVLP Spray Gun for tasks it is not designed to

perform.

8. DO NOT carry the HVLP Spray Gun by the air hose, or yank the hose

from the air supply.

9. DO NOT operate the HVLP Spray Gun if you are tired or under the

inﬂuence of alcohol, drugs or intoxicating medication.

10. DO NOT direct air from the air hose at yourself or others.

DISPOSAL

At the end of the useful life of the DURALAST HVLP Spray Gun, dispose of

the components according to all state, federal, and local regulations.

PURPOSE

The 80-376 HVLP Spray Gun features a high volume, low pressure

sprayer that reduces overspray to provide smooth, natural looking results.

This 20 Oz. HVLP Spray Gun has a 1.4 mm tip and is great for high

volume paint jobs and is suitable for DIY use.

PRODUCT SPECIFICATIONS

Recommended Air Pressure: 30-43 Psi

Air Consumption: 5-10 CFM

Weight: 1.28 Lbs.

Inlet (NPT): 1/4"

Recommended Hose Size, Inch: 1/4"

HVLP Feed Cup Capacity: 20 Oz.

Spray Nozzle Tip Size: 1.4 mm

WARNING

Ensure the air supply is clean and does not exceed 43 Psi while operating

the HVLP Spray Gun. Excessive wear will result if air pressure is too high

and/or you use unclean air. This can shorten the product life and may be

dangerous causing damage and/or personal injury.

OPERATING INSTRUCTIONS

WARNING

Ensure you read, understand and apply safety instructions before use.

1. Always inspect, maintain and operate in accordance with ANSI safety

code for portable air tools (ANSI B186.1) and other local safety codes

and regulations.

2. Do not operate this tool over 43 Psi air pressure.

3. Always disconnect this tool from the air supply before installing,

adjusting or removing any accessory from this tool or before

performing maintenance.

4. Always assume the air tool is loaded.

5. Do not carry any air tool by the hose. Keep air hose away from heat

and sharp objects.

6. Continuous use of vibrating air tools by susceptible users may cause

damage to hands.

7. Always lubricate and maintain the tool in safe operating condition.

8. Only use accessories which are speciﬁcally designed for use with a

HVLP Spray Gun.

9. Connect the HVLP Spray Gun to the air hose.

10. Air hose ﬁttings may get hot. Allow ﬁttings to cool before

disconnecting, or wear gloves to prevent burns.

11. Do NOT use an automatic oiler system or add oil to airline. The oil will

contaminate the material being propelled, ruining the ﬁnal result.

12. This HVLP Spray Gun is meant for spraying oil-based paints. It is

not recommended for regular wall paint or thin coatings of any

type. While these products can be used with the HVLP Spray Gun,

coverage will not be even.

13. Do NOT use latex paints with this HVLP Spray Gun.

14. Before spraying, cover nearby objects not being sprayed and lay

cloths (not included) on the ﬂoors.

AIR SUPPLY

Ensure the HVLP Spray Gun air valve (or trigger) is in the “off” position

before connecting to the air supply. Always use clean dry air as excessive

moisture will lower the available torque and rust the interior moving parts.

Make sure all hoses and ﬁttings are of the recommended size and be

sure the units are not used with less than or more than the recommended

pressure of the tool (30-43 Psi).

SPRAY GUN SETUP

CAUTION

Keep hands away from trigger while making adjustments.

1. The HVLP Spray Gun may be shipped with a protective plug covering

the air inlet. Remove this plug before set up.

2. Before ﬁrst use, clean the HVLP Spray Gun with a solvent-based

thinner to remove the protective coating used to prevent corrosion. If

it is not removed, it will contaminate the paint.

3. Thread the Cup to the top of the Gun Body and tighten until the Cup

is securely in place.

4. The HVLP Spray Gun is meant for spraying oil-based paints. It is not

recommended for regular wall paint or thin coatings of any type.

While these products can be used with a HVLP Spray Gun, coverage

will not be even.

5. It is important that you mix the paints properly. Follow the

manufacturer’s instructions. Most paints will spray easily if they are

thinned correctly.

6. Carefully strain the paint through a paint strainer or a piece of

cheesecloth.

7. Fill the Cup to 3/4 full and close the Cup.

8. Start the air compressor and set the regulator to the needed

pressure. Do NOT exceed maximum pressure (43 Psi).

9. Test the consistency by spraying a piece of scrap material.

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

NOTE: If it still appears too thick, add a very small amount of thinner

(not included) and mix thoroughly. Use the proper thinner for the type of

paint. Thin CAUTIOUSLY. Proceed slowly, adding minimal amounts at a

time. Do NOT exceed the manufacturer’s thinning recommendations.

FAN DIRECTION

1. To change the direction of the fan from horizontal to vertical, loosen

the Lock Ring and turn the Nozzle 90°.

2. After the adjustment, tighten the Lock Ring by hand.

PATTERN ADJUSTMENT

1. Adjust the air supply pressure during operation with the Trigger fully

depressed and the Air Knob fully open. If reducing air pressure for

speciﬁc areas, use the Air Knob.

2. Use the Pattern Knob to adjust the spray pattern. Turn Pattern Knob

counterclockwise (all the way open) to ﬂatten the spray pattern.

Turn it clockwise for a round spray pattern - see Figure E: Pattern

Adjustment.

FLUID ADJUSTMENT

1. Turn the Fluid Knob clockwise until it is fully closed.

2. After setting up a piece of test material, squeeze the Trigger in short

bursts while turning the Fluid Knob counterclockwise to set the

amount of ﬂuid - see Figure F: Fluid Adjustment.

If spray is too ﬁne: Reduce the air pressure or allow more paint to come

out by opening the Fluid Knob.

If spray is too thick (globs of paint):Close the Fluid Knob slowly,

checking the pattern after each adjustment.

SPRAYING TECHNIQUE

IMPORTANT: Proper spraying technique is ESSENTIAL to achieve good

results.

1. First, prepare the HVLP Spray Gun according to the instructions

under HVLP Spray Gun Setup on page 3.

2. Keep the HVLP Spray Gun upright and at a right angle to the

workpiece- See Figures G and H.

3. Using two hands, one to steady the Cup and the other to operate the

HVLP Spray Gun, aim the Nozzle at the workpiece.

CAUTION

DO NOT STOP WHEN SPRAYING. Spraying materials will start to set

and dry as soon as they come in contact with the air. They will cause a

permanent clog if not cleared immediately. If discontinuing spraying for

more than half an hour, turn off the air supply, disconnect Cup from Gun

Body and thoroughly rinse Cup and Gun Body with fresh, clean water.

4. Pull Trigger slowly and move the HVLP Spray Gun in parallel strokes

to the workpiece. Keep the distance from the workpiece at about

6” to 9”, depending on the ﬂow adjustment and the paint.

5. To avoid paint build up, start moving the HVLP Spray Gun before

squeezing the Trigger. When ﬁnished with the stroke, release the

Trigger while still moving the HVLP Spray Gun. Doing this will

produce a smoother ﬁnish. If the HVLP Spray Gun stops even brieﬂy

while spraying the paint will build up and run down the workpiece.

Lock Ring

Nozzle

Horizontal Fan

Vertical Fan

Figure D: Fan Direction

Figure E: Pattern Adjustment

Figure F: Fluid Adjustment

Move your arm,

not just your

wrist. Point gun

directly towards

the surface and

maintain an

even, steady

distance and

speed.

Correct Gun Angle

Figure G: Spray Gun Angle - top view

Figure H: Spray Gun Angle - side view

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

NOTE: The stroke speed, the Fluid Knob adjustment, and the distance

from the workpiece, will determine how much paint is being applied.

Apply two thin coats rather than one thick coat.

MAINTENANCE

WARNING

Disconnect the HVLP Spray Gun from air supply before changing

accessories, servicing or performing maintenance.

1. Replace or repair damaged parts. Use genuine parts only.

Unauthorized parts may be dangerous and will invalidate the

warranty.

2. Blow out air line to clear it of accumulated dirt and moisture.

3. Clean the HVLP Spray Gun immediately after EVERY use.

4. DO NOT use worn or damaged accessories.

5. To prevent accidents, release trigger, detach air supply, safely

discharge any residual air pressure, and release trigger again after

use.

INSPECTION

NOTE: These procedures are in addition to the regular checks and

maintenance explained as part of the regular operation of the

air-operated tool. BEFORE EACH USE, inspect the general condition of the

tool. Check for:

• Loose screws

• Misalignment or binding of moving parts

• Clogged nozzle

• Damaged air supply nose

• Cracked or broken parts

• Damaged electrical wiring

• Any other condition that may affect its safe operation

CLEANING / SOLVENT SELECTION

CAUTION

Do NOT use chlorinated solvents (e.g. 1-1-1 trichloroethylene and

dichloromethane, also known as methylene chloride) to clean spray guns.

Many spray guns contain aluminum, which reacts strongly to chlorinated

solvents. Contact the solvent or coating manufacturer as needed

regarding potential chemical reactions.

1. Follow the paint manufacturer’s recommendations for cleaning,

solvent type and disposing of used solvent.

2. Flush the HVLP Spray Gun a full hose length from the air

compressor.

3. If collecting ﬂushed solvents in a metal container, transfer to a

nonmetal container and ﬂush the metal container.

4. Do NOT immerse the HVLP Spray Gun.

IMPORTANT: Do not use mineral spirits on latex paints or the

mixture will congeal, making it very difﬁcult to remove.

• Oil Based Paints: Use mineral spirits.

WARNING

TO PREVENT FIRE, IF A FLAMMABLE SOLVENT

NEEDS TO BE USED, ADHERE TO THE FOLLOWING:

1. Work far away from any ignition sources in a vapor free area.

2. Keep a class ABC ﬁre extinguisher nearby.

AFTER EACH USE:

1. Empty the Cup and ﬁll the Cup with the solvent to clean it.

2. While shaking the HVLP Spray Gun, spray the solvent through the

gun into a container.

3. Once the Cup is empty, repeat the process until the solvent comes

out clean.

4. Disconnect from the air source.

5. After disconnecting, point the HVLP Spray Gun into the spent

solvent container and squeeze the Trigger again to make sure no air

remains.

6. Remove the Nozzle and soak it in the solvent until it is clean.

7. Use an old toothbrush or toothpicks to remove any leftover paint.

8. Inspect the Fluid Needle and make sure it is not bent. If it is bent,

have it replaced by a qualiﬁed technician.

9. Use appropriate solvent (See Solvent Selection) to wipe down the

HVLP Spray Gun body.

10. Lubricate the HVLP Spray Gun after cleaning.

11. A non-silicon or a light lubricant may be used on threaded

connections before storing.

NOTE: To prevent damage to the passages, do NOT use metal objects

to clean the Nozzle.

SOLUTION DISPOSAL

After cleaning, dispose of the cleaning solution according to the solution

manufacturer’s directions and local hazardous waste standards.

Figure I: Paint Stroke Triggering - top view

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service.

Problem Possible Causes Likely Solutions

Sputtering Spray 1. Low paint level.

2. Cup tipped.

3. Clogged Air Vent.

4. Loose ﬂuid inlet connection.

5. Loose/damaged ﬂuid tip/seat.

1. Reﬁll.

2. Hold upright.

3. Clean Air Vent hole.

4. Tighten ﬂuid inlet connection.

5. Adjust or replace ﬂuid tip.

Will Not Spray 1. No pressure at Spray Gun.

2. Fluid Knob not open enough.

3. Fluid too thick.

1. Check air hoses.

2. Open Fluid Knob.

3. Thin ﬂuid or increase air pressure.

(Do not exceed maximum 43 Psi.)

Overspray (Paint drifting to

unintended objects)

1. Improper application speed.

2. Improper distance from workpiece.

3. Too much air pressure.

1. Move moderately and parallel.

2. Adjust distance.

3. Reduce air pressure.

Fluid Tip Leakage 1. Dirty tip.

2. Broken ﬂuid needle spring.

3. Worn or damaged tip.

1. Clean tip.

2. Replace ﬂuid needle spring.

3. Replace tip and/or needle.

Air Leaking from Nozzle 1. Dirty air valve/seat.

2. Sticking air valve.

3. Damaged air valve spring.

4. Worn/damaged air valve/seat.

5. Bent valve stem.

1. Clean air valve/seat.

2. Lubricate air valve/seat.

3. Replace air valve spring.

4. Replace air valve.

5. Replace valve stem.

Problem Possible Causes Likely Solutions

Heavy

center

pattern

1. Pattern Knob partially closed.

2. The paint is too thick.

3. The air pressure is low.

1. Open Pattern Knob more.

2. Thin paint according to the manufacturer’s

instructions.

3. Increase air pressure within the Operating Air

Pressure.

Light

center

pattern

1. High air pressure.

2. Fluid Knob not open enough.

3. Pattern Knob open too far.

1. Reduce air pressure.

2. Open Fluid Knob.

3. Partially close the Pattern Knob.

Heavy

top/

bottom

pattern

1. Nozzle plugged.

2. Nozzle loose or dirty seal.

3. Dried paint on ﬂuid tip.

4. Damaged Needle.

1. Clean Nozzle.

2. Clean and tighten Nozzle and seal.

3. Use a nonmetallic point to clean Nozzle.

4. Have qualiﬁed technician replace Needle.

Pattern on

right or left

only

1. Dirt on one side of ﬂuid tip.

2. Holes on one side of Nozzle are

plugged.

3. Damaged Needle.

1. Clean ﬂuid tip.

2. Clean Nozzle with nonmetallic point.

3. Have qualiﬁed technician replace Needle.

TROUBLESHOOTING

GENERAL

SPRAY PATTERN DIAGNOSIS

NOTE: The drawings on the left below resemble symptoms of spray pattern problems. Refer to the accompanying possible causes and likely solu-

tions to the right

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

Item # Part Name Quantity

80-376-1

Nozzle 1

80-376-2 Lock Ring 1

80-376-3 Ring Washer 1

80-376-4 Sealed Ring 1

80-376-5 Fluid Nozzle 1

80-376-6 Nozzle Seat 1

80-376-7 Nozzle Seat Gasket 1

80-376-8 Spacing Ring 1

80-376-9 Screw Washer 1

80-376-10

Washer 2

80-376-11

O-Ring 1

80-376-12

Gun Body 1

80-376-13

Screw 1

80-376-14

Washer 1

80-376-15

O-Ring 1

80-376-16 Air Valve 1

80-376-17 Valve Shaft 1

80-376-18 Valve Gasket

80-376-19 Switch Spring

80-376-20 Air Inlet

80-376-21 Fixing Screw

Item # Part Name Quantity

80-376-22

Adjustment Nut 1

80-376-23 Pattern Knob 1

80-376-24 O-Ring 1

80-376-25 Adjustment Seat 1

80-376-26 Split Washer 1

80-376-27 Needle 1

80-376-28 Needle Spring 1

80-376-29 Adjusting Knob 1

80-376-30 Adjusting Knob Screw 1

80-376-31

Split Washer 2

80-376-32

Trigger 1

80-376-33

Trigger Pin 1

80-376-34

Needle Pin 1

80-376-35

Fluid Inlet Screw 1

80-376-36

Washer 1

80-376-37 Filter Connection 1

80-376-38 Connection Nut 1

80-376-39 Cup

80-376-40 Cup Lid

80-376-41 Vent Cap

Parts List

Parts Diagram

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



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



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



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



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NOTE:

Not all components of the HVLP Spray Gun are replacement items, but are illustrated as a convenient reference for location and position in the

assembly sequence.

Operating Instructions and Parts Manual 80-376

HVLP

SPRAY GUN

05/15

2015 DURALAST

DURALAST®THREE YEAR LIMITED WARRANTY

If for up to three years from the date of purchase of this DURALAST product, you ﬁnd any defect in material or workmanship through normal usage, return

it to the place of purchase, or to customer service for repair or replacement at our discretion. In order to obtain this service send your tool and proof of

purchase, transportation pre-paid, to Q.A. Dept, 3580 E. Raines Road #3, Memphis, TN 38118. We will not be responsible for lost or damaged goods during

transportation, please insure your package. If our inspection veriﬁes the defect, we will either repair or replace the product at our election, or we may

elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but

if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning

the product.

DURALAST does not provide warranty for products labeled other than DURALAST. DURALAST will not provide any warranty for products subjected to

abnormal use. Abnormal use includes, but is not limited to, abuse, accident, alteration, neglect, and unauthorized or unreasonable use or repairs. This

warranty does not cover bits, blades, ﬁles, batteries, or calibration. We recommend that you maintain your tools and sharpen or replace blades, bits, ﬁles,

and batteries as necessary. If this air tool is used for commercial purposes, the warranty will apply for (90) days from the date of purchase. DURALAST

reserves the right to makes any changes in construction or design at any time without any obligation in incorporating such changes to tools or equipment

previously sold.

DURALAST makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this

product is free from defects in materials and workmanship for the period of three years from the date of purchase. This warranty does not apply to

damage due directly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper

installation, normal wear and tear or to lack of maintenance.

We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the